KR0131355Y1 - Sound signal recording and reproducing device - Google Patents

Abstract

Provided is a circuit for receiving and reproducing a reproduced speech signal in a speech processing apparatus having a function of receiving a propagated speech signal, reproducing a demodulated reproduction or a speech signal recorded on a recording medium, and outputting it through a sounding body. The circuit may include voice signal digital conversion means for digitally converting an input voice signal, and record the converted digital voice data in an internal storage area in response to an input of a recording control signal, and in response to an input of a reproduction control signal. Voice data recording and reproducing means for outputting the stored digital voice data at least once for reading, analog conversion means for converting and outputting digital voice data output from the voice data recording and reproducing means into an analog voice signal; In response to the input of the first selection signal, the audio signal input from the outside is provided to the input of the voice signal digital conversion means, and in response to the input of the second selection signal, the analog output from the analog conversion means. Selection means for supplying a voice signal to the sounding body; Is composed. According to the above configuration, the audio signal received or reproduced can be recorded, repeatedly reproduced, and listened, and thus can be usefully used for language learning.

Description

Device for recording and repeating audio signal

1 is a circuit diagram of a recording and reproducing apparatus according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

12: tuner 14: signal selector

16: voice processor 18: selector amplifier

20: amplifier 22: voice coder

24: memory 26: voice decoder

28: controller

The present invention relates to a voice signal processing apparatus for recording and reproducing voice signals, and more particularly, to a circuit for recording and repeatedly reproducing voice signals reproduced in a voice processing apparatus having a function of reproducing and outputting a propagated voice signal.

In general, electronic products having a function of processing a voice signal, for example, home appliances such as televisions, cassette tape recorders, radios, and the like, are simply demodulated and reproduced by audible sound. It only has the function to print. That is, a television or a radio that receives and reproduces a sound wave propagated from a broadcasting station can record an audio signal by simply converting the received sound wave by intermediate frequency conversion, voice demodulation, and amplifying the sound wave to a predetermined level. No specific voice could be heard repeatedly. On the other hand, an audio cassette player or the like that reproduces the audio signal picked up from the recording medium simply does not provide a function of repeatedly picking up and playing back the audio signal recorded on the recording medium and reproducing a specific voice.

Accordingly, an object of the present invention is to provide a device for receiving and reproducing and outputting a voice signal to be propagated.

Another object of the present invention is to convert an analog audio signal into digital voice data and store it in a memory, and to replay and reproduce the voice signal stored in the memory as an analog voice signal in response to an input of a repetitive reproduction control signal. An apparatus for recording and repeating reproduction of a signal is provided.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of an apparatus for recording and repeatedly playing back audio signals according to the present invention, which is a circuit diagram of one embodiment used in a television. Reference numeral 50 in the figure denotes a voice signal processor for receiving and demodulating the propagated voice signal and outputting the reproduced voice signal. This audio signal processing section 50 is a circuit used in generalized television. Reference numeral 100 is a circuit diagram of a recording and reproducing apparatus for recording and repeatedly reproducing an audio signal according to the present invention.

The voice signal recording and reproducing apparatus 100 according to the present invention includes a selection amplifier 18 for selecting and outputting one of a plurality of input speech signals in response to an input of the selection control signal CON2, and the selection amplifier ( 18. The amplifier 20 amplifies the analog audio signal outputted from the amplifier 18 to a predetermined level and outputs the sound to a sounding body such as a sounding body (not shown), and the analog audio signal output from the selection amplifier 18. The voice coder 22 for digital conversion and the output of the voice coder 22 are recorded (stored) in a predetermined area in response to a recording control signal, and the outputted voice data is repeatedly output in response to an input of a reproduction control signal. Memory 24 and a voice decoder 26 for converting the digital voice data output from the memory 24 into an analog voice signal and providing the selected voice signal to the selector 18. By comprises a controller 28 for controlling the voice coder 22, a memory 24 and an audio decoder 26. Here, the controller 28 outputs the control signal of the recording control signal, the recording address and the voice coder 22 or repeats the control signal of the read control signal, the reading address and the voice decoder 26 according to the user's selection behavior. It has a function to output, which can be configured using a general-purpose microprocessor.

Hereinafter, the operation of FIG. 1 according to the present invention will be described in detail, on the assumption that the tuner 12 shown in FIG. 1 receives a radio wave of a channel by a user's selection.

Now, when the tuner 12 propagates into the air and separates and outputs an audio signal and a video signal of a desired channel among radio waves received by the antenna, the audio signal Audio is a signal selector 14. It is input to the terminal A of the switch 30 inside.

At this time, the external voice signal E-A is input to another terminal B of the switch 30. Here, the external voice signal E-A means a voice signal input through an audio jack. The switch 30 in the signal selector 14 switches the contact point C to the terminal A or the terminal B according to the state of the level of the control signal CON1 output from the controller 28. The control signal CON1 output from the controller 28 is changed according to the user's selection mode, which is high in the TV mode and low in the external signal selection mode. The switch 30 selects a signal input to the terminal A when the level of the control signal CON1 is high, and inputs the signal to the amplifier 32, and the terminal 8 when the level of the control signal CON1 is low. Select the signal input to the input to the amplifier (32). The amplifier 32 in the signal selector 14 amplifies the input signal into a signal of a predetermined level and is input to an arbitrary terminal of the voice processor 16.

The voice processor 16 inputs the input voice signal into the internal buffer 34 to buffer the filter 36 and the amplifier 38. The filter 36 filters the buffered voice signal and outputs the filtered voice signal to a voice processor (not shown). The amplifier 38 amplifies the input of the buffered voice signal into a signal of a predetermined level and inputs it to the selection amplifier 38. The voice processor 16 can use the voice processor in a general-purpose TV as it is.

On the other hand, the selection amplifier 18 selects one of three voice signals input according to the state of the control signal CON2, amplifies the selected voice signal into a signal of an appropriate level, and the amplifier 20 and the voice coder 22. To enter. Here, the three audio signals are converted into an analog signal from the audio signal output from the amplifier 38, the audio signal E-AP reproduced from the outside, and the audio decoder 16 to be described later. It is a voice signal. The control signal CON2 input to the selection amplifier 18 is a signal output from the controller 28 as a control signal capable of selecting and outputting a desired voice signal among at least three voice signals, which is at least two. It must be a bit signal.

The controller 28 outputs a control signal CON2 according to a user's mode selection. In the recording mode, the controller 28 selects one of a signal reproduced from the outside or an audio signal output from the amplifier 38. CON2), and in the playback mode, selects and outputs the audio signal output from the audio decoder 26. The operation according to the recording mode and the reproduction mode is as follows.

When the user selects one of the above-described voice signal output from the amplifier 38 in the voice signal processor 16 or voice signal E-AP reproduced and input from the outside and outputs a selection signal to listen to, The controller 28 outputs a control signal CON2 to the selection amplifier 18 in response to the user's selection. The selection amplifier 18 selectively amplifies one of a voice signal E-AP input from the outside or a voice signal output from the amplifier 38 in response to the control signal CON2 output from the controller 28. It outputs to the amplifier 20 and to the voice coder 22 at the same time.

The amplifier 20 amplifies the voice signal output from the selection amplifier 18 into a signal of a predetermined level, and outputs the sound signal to the sounding body (eg, a speaker) to be output as an audible sound. Therefore, the user can listen to the voice of his choice. In this case, the voice coder 22 does not operate in an initial disable state.

In the above state, when the current mode is set to the recording mode in order to memorize the current voice signal and to listen repeatedly for a specific number of times, the controller 28 supplies the enable signal to the voice coder 22 and at the same time the memory. A write control signal is output to (24). The write control signal here means a write enable signal for recording and a recording address.

The voice coder 22 converts the analog audio signal input in response to the enable signal input from the controller 28 into digital voice data and inputs it to the input terminal of the memory 24 connected to the output terminal. . The voice coder 22 may use a general-purpose analog-to-digital converter, and may use a voice codec that processes voice exclusively, for example, an integrated circuit having the function of adaptive delta pulse code modulation (ADPCM). The analog audio signal is converted into digital audio data.

The memory 24 stores (writes) digital voice data output from the voice coder 22 in a storage area of a write address signal output from the controller 28. It can be seen that when the selection amplifier 18 selects and outputs the voice signal E-AP input from the outside or the voice signal output from the amplifier 28 by the above operation, it is stored in the memory 24. . Therefore, the user can store, in the memory 24, the voice reproduced as an audible sound from the speaker (speaker) through the amplifier 20.

When the user sets the number of repetitive regenerations and selects a repetition key (Repeat) in the regeneration mode in the state where the voice signal is recorded in the memory 24 as described above, the controller 28 does not recognize the above-described selection amplifier 18. While outputting a control signal CON2 for selecting a voice signal converted into a log signal, the voice coder 22 is disabled, and the memory 24 and the voice decoder 26 are operated in a playback mode. In the present invention, the reproduction mode means that the controller 28 outputs a read address and a read control signal to the memory 24 and enables the voice decoder 26.

When operated in the reproduction mode as described above, the memory 24 accesses and outputs the digital audio data recorded at the predetermined address to the audio decoder 26 by the above-described operation. The voice decoder 26 decodes the digital voice data into an analog voice signal and supplies it to the input terminal of the selection amplifier 18. The voice decoder 26 can use a digital-analog converter that is used universally as it is, and can be manufactured using an integrated circuit having the function of ADPCM.

The selection amplifier 18 selects an audio signal converted from the voice decoder 26 into an audio signal of the analog in response to an input of the control signal CON2 output from the controller 28, and the amplifier 20. Will output As described above, the amplifier 20 amplifies the input audio signal into a signal of a predetermined level and outputs the sound signal to the speaker so that the user hears the voice signal read from the memory 24.

At this time, the reproduction of the digital data output from the memory 24 is controlled by the controller 28 so as to repeat the number of repetitions set by the user as described above. That is, the controller 28 repeatedly executes the output control number of the digital voice data stored in the memory 28 by the number of times of reproducing preset by the user.

For example, if the user has set the repetitive output of the digital voice data stored in the memory 24 three times, the controller 28 repeats the output of the digital voice data stored in the memory 24 three times. Output through).

As described above, the present invention can be usefully used in a CATV broadcast receiver by storing the voice signal received at the home appliance receiving the propagated voice signal in the storage means of the integrated circuit and repeatedly reproducing and outputting the number of times set by the user. In particular, there is an advantage that can increase the effectiveness of education through a radio wave medium such as television.

Claims (2)

A voice processing apparatus for outputting a voice signal input from the outside as a home sound, comprising: a voice signal processor for demodulating and outputting a received voice signal, a voice coder for converting an input voice signal into a digital signal, The digital audio data output from the voice coder in response to the input of the recording address signal and the recording control signal is stored in an area corresponding to the input of the recording address signal, and the reproduction address in response to the input of the reproduction address signal and the reproduction control signal. A memory for reading out and outputting digital audio data stored in the area, and supplying a first selection signal in response to the setting of the recording mode, and supplying a recording address and a recording control signal to the memory means, in response to the setting of the reproduction mode. At the same time as supplying the second selection signal; A controller for supplying a reproduction control signal to the memory, a voice decoder for converting and outputting digital voice data output from the memory into an analog voice signal, and a signal input from the outside in response to the input of the first selection signal. Selecting one of a voice signal and the demodulated voice signal to provide the input to the voice coder, and selectively amplifying and outputting an analog voice signal output from the voice decoder by the input of the second selection signal to the sounding body A device for recording and repeating playback of audio signals, characterized in that it comprises a selection amplifier. 2. A circuit according to claim 1, wherein said control means repeats the output of said reproduction address as many times as a number corresponding to a preset number of repetitions.